April 2007 - AMSAT-BB - mailman.amsat.org

CP4 sound Apr.29
by Mineo Wakita 29 Apr '07

29 Apr '07

I recorded with MixW2 using USB mode and emulatiton an KISS TNC. http://www.ne.jp/asahi/hamradio/je9pel/70429cp4.wav de JE9PEL, Mineo Wakita

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Digital modes and antenna questions
by Stargate 28 Apr '07

28 Apr '07

Hi, Can someone point me to a website that explains the current digital modes and ways to use them? Also decoding telemetry from the birds, is there a "one size fits all" software or does each satellite have specialized software for doing this? Can you use Sound cards, TNC, specialized modems? I keep seeing references to 9K6, 38k6, and the like and have no idea what they are. Also, are TNC's really necessary anymore? I've been away from amateur radio for over 10 years and things sure have changed. I'm still putting my satellite station together and am down to picking antenna's and feed line. I am trying to build the station up for the future HEO birds as well, so what kind of overall db receiving level should I be shooting for? Has anyone used "Gulf Alpha" antenna's? The cross polarized antenna's look very good to me. It wouldn't be circular polarization but I would be able to switch between vertical or horizontal with a flip of the switch. All help appreciated, TNX 73's RoD KD0XX

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5400 az rotor
by w7lrd＠comcast.net 28 Apr '07

28 Apr '07

Hello I am getting erratic direction readings from my 5400 az rotor. I am sure it is the pot for the direction. Has anyone done sugery on this unit. Wha should I do and not do. thanks 73 Bob W7LRD Seattle

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CAPE-1 telemetry
by Mike Rupprecht 28 Apr '07

28 Apr '07

Hi, telemetry from Apr 27, 2007 at 12:17 k5usl 1 9d00ffff00000000 12:20 k5usl 2 fefffdfc00fc0202fd 12:22 k5usl 3 000000000008 12:25 k5usl 1 9d00ffff00000000 Beacon 1: 9d00ffff00000000 Beacon 2: fefffdfc00fc0202fd Beacon 3: 000000000008 MPB Voltage : 3,14 V HPB Voltage : 0 V Battery 1 Voltage : 5,1 V Battery 2 Voltage : 5,1 V Batt 1 Current gener : 0 mA Batt 1 Current absorb : 0 mA Batt 2 Current gener : 0 mA Batt 2 Current absorb : 0 mA Temp Battery 1 : -2 °C Temp +X face : -1 °C Temp -X face : -3 °C Temp +Y face : -4 °C Temp -Y face : 0 °C Temp +Z face : -4 °C Temp -Z face : 2 °C Temp RF Amp : 2 °C Temp Battery 2 : -3 °C Panel +X face : 0 °C Panel -X face : 0 mA Panel +Y face : 0 mA Panel -Y face : 0 mA Panel +Z face : 0 mA Panel -Z face : 80 mA ---------------------------------------------------------------------------- ---- 21:52 k5usl 3 000000000000 21:55 k5usl 1 9d00d2d300000900 21:57 k5usl 2 fdffe4e2e0e5dcfffd 21:59 k5usl 3 000000010006 22:02 k5usl 1 9d00ffff00000000 22:04 k5usl 2 fcfff3eef8fbe4fffb Beacon 1: 9d00d2d300000900 Beacon 2: fdffe4e2e0e5dcfffd Beacon 3: 000000010006 MPB Voltage : 3,14 V HPB Voltage : 0 V Battery 1 Voltage : 4,2 V Battery 2 Voltage : 4,22 V Batt 1 Current gener : 0 mA Batt 1 Current absorb : 0 mA Batt 2 Current gener : 9 mA Batt 2 Current absorb : 0 mA Temp Battery 1 : -3 °C Temp +X face : -1 °C Temp -X face : -28 °C Temp +Y face : -30 °C Temp -Y face : -32 °C Temp +Z face : -27 °C Temp -Z face : -36 °C Temp RF Amp : -1 °C Temp Battery 2 : -3 °C Panel +X face : 0 °C Panel -X face : 0 mA Panel +Y face : 0 mA Panel -Y face : 10 mA Panel +Z face : 0 mA Panel -Z face : 60 mA 73, Mike DK3WN

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CP4 telemetry
by Mike Rupprecht 28 Apr '07

28 Apr '07

Apr 27, 2007 at 21:20 UTC ctrl: 3 {UI} PID: F0 {No L3} Frame Bytes: 23 [Payload Bytes: 7] from N6CP to N6CP: 1 > 04 43 4F 4D 4D 20 41 .COMM A ctrl: 3 {UI} PID: F0 {No L3} Frame Bytes: 115 [Payload Bytes: 99] from N6CP to N6CP: 1 > 01 44 20 0D 09 1C 92 02 07 04 63 9D D9 EA C0 93 04 00 03 80 21 > BA CD C9 C1 8E 01 00 09 A8 33 BE CC BD 93 03 03 03 8D 52 E6 41 > DB C4 90 00 00 03 73 8C EE F1 C0 00 05 B8 9B B8 B8 A6 11 0E 61 > 0B 03 0C 01 6E 80 80 B9 B9 83 C7 68 F6 BA FF 36 EC 83 C7 68 81 > F7 BF FF 68 ED 03 01 00 00 26 26 08 6B 01 26 35 2D 5C B0 21:25 UTC ctrl: 3 {UI} PID: F0 {No L3} Frame Bytes: 23 [Payload Bytes: 7] from N6CP to N6CP: 1 > 04 43 4F 4D 4D 20 42 .COMM B ctrl: 3 {UI} PID: F0 {No L3} Frame Bytes: 115 [Payload Bytes: 99] from N6CP to N6CP: 1 > 01 47 20 0D 0F 1B B6 02 05 03 51 A5 9C AE C0 CD 45 37 02 77 21 > BD 6D 64 C2 B0 01 00 08 95 23 6B 77 BE B6 03 01 03 7F 48 FB 41 > F0 C5 CF 0E 0B 03 66 9F F7 F5 C1 00 04 B9 A7 B8 B9 C3 10 10 61 > 0D 0A 04 02 7A 8C 8B BA BA 8B C7 6C F3 FD FF 34 EC 8B C7 6B 81 > F4 FF FF 67 ED 03 01 00 00 66 26 08 5A 01 26 16 2A 5C BF 73, Mike DK3WN

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Re: IRB's and Satellites.
by Edward Cole 28 Apr '07

28 Apr '07

Jeff, Perhaps I should retrench in my comments, as I do not disagree with you. My entire ham radio experience "is" that challenge. I am an engineer and what "we" do is design and build. EME and Microwave provide that. Satellite, also, but to a lessor level...it is my "desert after the meal". I have a dear friend that absolutely refuses anything dealing with IRLB or Echolink. But I feel they serve a purpose and do provide a service. There is no incentive to build, except to the folks that provide the service. That is how I look on repeaters. They are handy for talking over. They do not "excite" because that is what I do professionally (repeaters are work, not fun). At work I have 7 remote bases to maintain. So in the back of my mind I was thinking that the IRB or IRLB linking for running a remote base is merely a utility...same as leasing a phone line. Just a piece of the station (like a microphone). Setting up a remote base can be ham radio fun (like repeaters are for many). But if you are merely accessing a public remote base then its like buying long distance telephone service (yawn). But if your living situation prohibits direct participation in a facet of ham radio (apartment restrictions, not enough money) then it is a way to experience some of the fun (sort of like hanging over at the neighbor ham's super station). Whether this will become an incentive to get involved in at a "personal" level is a question. I think that is like anything else one comes in contact with in their life. Some do, some don't. But I am "FOR" new ideas, and new ways. Keeping it "new" is FUN. Why I am now getting into MW listening on 500-KHz. Its new and still falls under the big umbrella called "weak-signal". BTW DX began as a "weak-signal" activity, but on HF-DX (mostly) has become a sport (competition). Satellite and QRP now provide much of the fun of the early HF DX...discovering how far one can push the envelope! 73's Ed - KL7UW 0.5 - 10,368 MHz, sat, eme, m/s, radio astronomy, SDR's, ...no end in sight ;-) At 02:31 AM 4/27/2007, Jeff Davis, KE9V wrote: >On 4/26/07, Edward Cole <kl7uw(a)acsalaska.net> wrote: > > We have seen this debate here in Alaska with the '"diehard" (read > > this also as the super pro-CW) ham disliking anything dealing with > > marriage between the Internet and ham radio. > >I don't think my position could be considered "diehard" and as the >operator of IRLP node 4212 I have no problem with the "marriage >between the Internet and ham radio." In fact, I think it serves a >great purpose and I use it daily. I wish we had a weekly AMSAT Net via >Echolink or IRLP so we could use such technologies to further discuss >the future of ham radio in space (anyone want to join me?) without the >vagaries of HF propagation. > >But I think that there are certain facets of the hobby, like >satellites and EME and probably others, where folks get involved >specifically for the technology. Would a homebrewer without access to >a soldering pin be content to watch others build equipment on a live >video feed? Would there be a thrill in logging on to a super station >on another continent from your laptop and working moonbounce? > >Unless one is a skeptic that this sort of thing (EME) actually takes >place and just needs some proof, I think we all believe that with the >right equipment the deed CAN be done, but the challenge is in doing >it. > > > So I have no problem with remote bases linked by IRLB, echolink, or > > like technology. As long as any records, contest entry reflects the > > actual radio transmitter QTH. > >The amateur satellite world has a unique problem. It doesn't work well >without satellites and those cost money to build and to launch. If we >were to setup a dozen super stations around the world, all fully >accessible via the internet -- and few built their own stations >anymore, will those Internet users financially support future AMSAT >projects? > >If your entire investment in amateur radio is the laptop that you >already own, are you as inclined to support costly future projects as >the operator who has invested perhaps thousands of dollars and hours >of labor in assembling and building a world class groundstation? > >I think there is some evidence that they do not... > >20 years ago there was a very popular idea that AMSAT should focus on >EZ-Sats because that would get more people involved with amateur >satellites since all they would need to operate them was a handheld >transceiver. Soon, we had all kinds of new operators using the flying >FM repeater satellites but curiously, AMSAT membership took a nose >dive from which it has yet to recover. > >Perhaps making everything as "easy" as just logging on to a remote >station isn't such a good idea either? > >Jeff, KE9V >_______________________________________________ >Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the author. >Not an AMSAT-NA member? Join now to support the amateur satellite program! >Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb 73, Ed - KL7UW ====================================== BP40IQ 50-MHz - 10-GHz www.kl7uw.com 144-EME: FT-847, mgf-1801, 4x-xpol-20, 185w DUBUS Magazine USA Rep dubususa(a)hotmail.com ======================================

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No signal from FO-29
by Mika Siira 28 Apr '07

28 Apr '07

Hi all, I just monitored orbit #52819, nothing heard in KP24SX. It is sad if we have lost FO-29 forever, I have had many nice QSO's with my balcony antenna setup during past 1,5 years. People are now moving to use other sats and it is really noticeable. During european passes AO-51 is just a big chaos and on VO-52 it is much more difficult to make QSO's because of some alligators. I am planning to make some kind of satellite station to my mother's house in KP25 during this summer and try to make my first transatlantic contact. I keep my thumbs up that AO-7 stays alive for this attempt! :) Mika, OH8MBN

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I listened today CAPE-1 CW around 435.2474 +/- doppler.
by Mineo Wakita 28 Apr '07

28 Apr '07

I listened today CAPE-1 CW around 435.2474 +/- doppler. http://www.ne.jp/asahi/hamradio/je9pel/70428ca1.wav http://www.ne.jp/asahi/hamradio/je9pel/70428ca2.wav --------------------------------------------- Name: Mineo Wakita / JE9PEL, JAMSAT member Mail: ei7m-wkt(a)asahi-net.or.jp URL : http://www.ne.jp/asahi/hamradio/je9pel/ QTH : Yokohama Japan, GL:pm95tj Date: Apr 28, 2007 ---------------------------------------------

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Libertad-1 frequency
by Mike Rupprecht 28 Apr '07

28 Apr '07

All, just copied telemetry at 10:43 UTC (Apr 28, 2007) loud and clear 5K3L/BEACON>5K3USA>UI,C,F0: A00O55C11I66P24R-2_LIBERTAD_1COL_B:157AA 5K3L/BEACON>5K3USA>UI,C,F0: A00O55C11I66P24R-2_LIBERTAD_1COL_B:157AA 5K3L/BEACON>5K3USA>UI,C,F0: A00O55C11I66P24R-2_LIBERTAD_1COL_B:157AA Temperatures : Sensor A dead (0) Sensor O 55°C Sensor C 11°C Sensor I 66°C Sensor P 24°C Sensor R -2°C Frequency = 437.399 MHz +/- Doppler TLE NORAD #31129 73, Mike

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New Satellite launch prediction
by Mineo Wakita 28 Apr '07

28 Apr '07

Nanosatellite Launch System 4 Launch Date: June 30, 2007 Launch Vehicle: Antrix Polar Satellite Launch Vehicle (PLSV) Separation System: XPOD (5), Cute Separation System (1) Spacecraft Complement: CanX-2 (Canada), AAUsat-2 (Denmark), Cute-1.7+APD II (Japan), COMPASS-1 (Germany), Delfi-C3 (Netherlands), SEEDS (Japan) Satellite Uplink Downlink Mode CANX-2 70cm 13cm Not AX.25, 2m CW AAUSAT-II 437.425 437.425 1200bd AFSK, 9600bd FSK, CW COMPASS-1 . . 9600bd FSK, CW DELFI-C3 435.570-530 145.880-920 Inverting DELFI-C3 . 145.870 1200bd BPSK, CW CUTE 1.7+APD II 1267.6 437.475 AX.25/SRLL CUTE 1.7+APD II . 437.275 CW SEEDS . 437.485 CW http://showcase.netins.net/web/wallio/CubeSat.htm http://www.utias-sfl.net/SpecialProjects/LaunchIndex.html de JE9PEL, Mineo Wakita

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